251015340034 has 16 divisors (see below), whose sum is σ = 396478908000. Its totient is φ = 118860333984.

The previous prime is 251015339987. The next prime is 251015340073. The reversal of 251015340034 is 430043510152.

It is a junction number, because it is equal to n+sod(n) for n = 251015339984 and 251015340011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047484 + ... + 1264615.

It is an arithmetic number, because the mean of its divisors is an integer number (24779931750).

Almost surely, 2^251015340034 is an apocalyptic number.

251015340034 is a deficient number, since it is larger than the sum of its proper divisors (145463567966).

251015340034 is a wasteful number, since it uses less digits than its factorization.

251015340034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314977.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 251015340034 its reverse (430043510152), we get a palindrome (681058850186).

The spelling of 251015340034 in words is "two hundred fifty-one billion, fifteen million, three hundred forty thousand, thirty-four".